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HCTmicro HCT6931
| Manufacturer | HCTmicroAsian Brands |
| MPN | HCT6931 |
| LCSC Part # | C46469662 |
| Packaging | TSSOP-24 |
| Customer # | |
| Key Attributes | IC ADC 24BIT SIGMA-DELTA TSSOP-24 |
| Datasheet |  HCTmicro HCT6931 |
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Data Acquisition/Analog to Digital Converters (ADC) | |
| Manufacturer | HCTmicro | |
| Packaging | TSSOP-24 | |
| Operating Temperature | -40℃~+105℃ | |
| Interface | SPI | |
| Quiescent Current (Iq) | 360uA | |
| Voltage - Supply | 2.8V~5.5V | |
| Number of Channels | 8 | |
| Integral non - linearity | - | |
| Clock/Oscillator | Built-in | |
| Clock Frequency | 2.4576MHz | |
| Features | Multiplexers;Built-in temperature sensor;Integrated modulator;Built-in digital filter;Auto calibration;Input buffer;Synchronous triggering;Soft reset;Power-on reset;Under-voltage detection | |
| Voltage Reference | Built-in | |
| Resolution(Bits) | 24;6.4kHz;12.8kHz | |
| S/N Ratio | - | |
| ADC architecture | Sigma-Delta | |
| Programmable Gain | Support |
Additional Information
| Type | Details |
|---|---|
| Minimum | 1 |
| Multiple | 1 |
| Standard Packaging | 3000 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
HCT693x is an 8-channel, 24-bit high-precision ADC with SPI interface, integrating a 1× to 128× programmable low-noise instrumentation amplifier, high-precision Σ-Δ ADC, dual precision current sources, high-performance temperature sensor, 5ppm/°C high-precision voltage reference, bias voltage output circuit, and precision internal RC clock source. The ADC achieves an effective resolution of 24 bits at 1× PGA and 21.5 bits at 64× PGA, with equivalent input noise as low as 11nV/√Hz, offset voltage of 1μV, and offset temperature coefficient below 10nV/°C. The output data rate is configurable from 3.125Hz to 6400Hz, and from 6.25Hz to 12800Hz in high-power, frequency-doubling mode. This device is suitable for high-performance temperature sensing, analytical balances, industrial process control, DC/AC energy metering, instrumentation, and other applications requiring high-precision, low-offset measurements.
Features
- Operating voltage range: 2.8~5.5V
- Operating current: 360μA in normal mode, 260μA in low-power mode, 1μA in sleep mode
- Built-in low-noise amplifier with configurable gain of 1, 2, 4, 8, 16, 32, 64, 128
- 8-channel signal input, configurable as 8 single-ended or 4 differential inputs
- Integrated dual precision current sources and one voltage bias circuit, assignable to 8 input channels
- Integrated 5ppm/°C, 2.5V high-precision voltage reference with load regulation < 60μV/mA
- 24-bit high-precision low-offset Σ-Δ ADC
- 11 selectable decimation rates from 3.125Hz to 6400Hz
- Data rate 6.25Hz to 12800Hz in high-power and frequency-doubling modes
- 50Hz and 60Hz synchronous rejection
- DC offset self-calibration
- Linearity: 0.0005% FS, 24 effective bits
- Noise level: 11nV/√Hz @ 128× PGA
- Offset: 1μV @ 64/128× PGA
- Integrated 2.4576MHz internal high-frequency RC clock with batch frequency deviation < 1% and temperature drift of 1% over -40~85°C
- External precision clock input via dedicated pin
- Built-in low-impedance ground switch
- Built-in high-precision temperature sensor with ±1°C accuracy over -40~85°C
- SPI interface: standard 4-wire or 3-wire SPI, up to 10MHz clock, single/burst register read/write, command frame parity and CRC protection
- System functions: software global reset, power-on auto-reset, undervoltage alert
- Operating temperature range: -40~+105°C
- Storage temperature range: -40~+125°C
- Package: TSSOP24/QFN24L
| Qty | Unit Price | Total Amount |
|---|---|---|
| 1+ | $ 4.9705 | $ 4.97 |
| 10+ | $ 4.7459 | $ 47.46 |
| 30+ | $ 4.6076 | $ 138.23 |
| 100+ | $ 4.492 | $ 449.20 |
Standard Packaging3000/Full Reel | ||
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Data Acquisition/Analog to Digital Converters (ADC) | |
| Manufacturer | HCTmicro | |
| Packaging | TSSOP-24 | |
| Operating Temperature | -40℃~+105℃ | |
| Interface | SPI | |
| Quiescent Current (Iq) | 360uA | |
| Voltage - Supply | 2.8V~5.5V | |
| Number of Channels | 8 | |
| Integral non - linearity | - | |
| Clock/Oscillator | Built-in | |
| Clock Frequency | 2.4576MHz | |
| Features | Multiplexers;Built-in temperature sensor;Integrated modulator;Built-in digital filter;Auto calibration;Input buffer;Synchronous triggering;Soft reset;Power-on reset;Under-voltage detection | |
| Voltage Reference | Built-in | |
| Resolution(Bits) | 24;6.4kHz;12.8kHz | |
| S/N Ratio | - | |
| ADC architecture | Sigma-Delta | |
| Programmable Gain | Support |
Additional Information
| Type | Details |
|---|---|
| Minimum | 1 |
| Multiple | 1 |
| Standard Packaging | 3000 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
HCT693x is an 8-channel, 24-bit high-precision ADC with SPI interface, integrating a 1× to 128× programmable low-noise instrumentation amplifier, high-precision Σ-Δ ADC, dual precision current sources, high-performance temperature sensor, 5ppm/°C high-precision voltage reference, bias voltage output circuit, and precision internal RC clock source. The ADC achieves an effective resolution of 24 bits at 1× PGA and 21.5 bits at 64× PGA, with equivalent input noise as low as 11nV/√Hz, offset voltage of 1μV, and offset temperature coefficient below 10nV/°C. The output data rate is configurable from 3.125Hz to 6400Hz, and from 6.25Hz to 12800Hz in high-power, frequency-doubling mode. This device is suitable for high-performance temperature sensing, analytical balances, industrial process control, DC/AC energy metering, instrumentation, and other applications requiring high-precision, low-offset measurements.
Features
- Operating voltage range: 2.8~5.5V
- Operating current: 360μA in normal mode, 260μA in low-power mode, 1μA in sleep mode
- Built-in low-noise amplifier with configurable gain of 1, 2, 4, 8, 16, 32, 64, 128
- 8-channel signal input, configurable as 8 single-ended or 4 differential inputs
- Integrated dual precision current sources and one voltage bias circuit, assignable to 8 input channels
- Integrated 5ppm/°C, 2.5V high-precision voltage reference with load regulation < 60μV/mA
- 24-bit high-precision low-offset Σ-Δ ADC
- 11 selectable decimation rates from 3.125Hz to 6400Hz
- Data rate 6.25Hz to 12800Hz in high-power and frequency-doubling modes
- 50Hz and 60Hz synchronous rejection
- DC offset self-calibration
- Linearity: 0.0005% FS, 24 effective bits
- Noise level: 11nV/√Hz @ 128× PGA
- Offset: 1μV @ 64/128× PGA
- Integrated 2.4576MHz internal high-frequency RC clock with batch frequency deviation < 1% and temperature drift of 1% over -40~85°C
- External precision clock input via dedicated pin
- Built-in low-impedance ground switch
- Built-in high-precision temperature sensor with ±1°C accuracy over -40~85°C
- SPI interface: standard 4-wire or 3-wire SPI, up to 10MHz clock, single/burst register read/write, command frame parity and CRC protection
- System functions: software global reset, power-on auto-reset, undervoltage alert
- Operating temperature range: -40~+105°C
- Storage temperature range: -40~+125°C
- Package: TSSOP24/QFN24L
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | |
| ECCN | - |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | |
| ECCN | - |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |